Magnetic Nanoparticles Can Remotely Control Worms | Gizmodo Australia Page 1 of 4 z Babble z Defamer z Gizmodo z Kotaku z Lifehacker z PopSugar z BellaSugar z FabSugar z BRDEESFRITJPPLUS z | z Chumby z | z Mobile z | z Twitter z | z RSS z | z Tip Your Editors Gizmodo Australia z Cameras z Games z Online z Phones z Toys z More { Announcements { Breakfast Wrap { Business { Computers { Deals { Design { Entertainment { Gadgets { GPS { Hardware { Home { MobileModo { Music { Networks { Peripherals { Press { QOTD { Random Stuff { Regulars { Robots http://www.gizmodo.com.au/2010/07/magnetic-nanoparticles-can-remotely-control-worms/ 7/13/2010 Magnetic Nanoparticles Can Remotely Control Worms | Gizmodo Australia Page 2 of 4 { Science { Screens { Software { Sports { Vehicles { Weapons { _ search Science Magnetic Nanoparticles Can Remotely Control Worms By Jess McNally - Wired on July 8, 2010 at 2:40 PM Using magnetic nanoparticles, scientists have found a way to remotely control neurons and affect animal behaviour. The nanoparticles, which are targeted to attach to cell membranes, heat up when exposed to a magnetic field. Researchers have demonstrated that the heat can open calcium ion channels in cells, activate neurons and even cause C. elegans worms to recoil, according to a paper released in Nature Nanotechnology June 27. “This research will help us unravel the signalling networks that control animal behaviour,” physicist Arnd Pralle of the University of Buffalo, co-author of the study, said in a press release July 6. The work could also have applications in cancer treatments and diabetes therapies. If the nanoparticles can be http://www.gizmodo.com.au/2010/07/magnetic-nanoparticles-can-remotely-control-worms/ 7/13/2010 Magnetic Nanoparticles Can Remotely Control Worms | Gizmodo Australia Page 3 of 4 targeted to specific proteins or cells, it may be possible to kill cancer cells by overheating the cell wall, or to stimulate the pancreatic cells to release insulin. The method only affects cell walls, so patients wouldn’t actually feel the heat. “It would take forever to heat up [a] whole cell since it is cooled so well by all the water around it,” Pralle said. One of the major questions for using the technique in human applications is where the heat-sensitive ion channels are in the body. In the C. elegans worms, the researchers were able to target known ion channels that opened up at 34C, which caused the recoil response. In humans, similar ion channels in fingers open up at 50C, which is what causes our fingers to jump back when we touch something too hot, but little is known about other places where this happens in the body. Wired.com has been expanding the hive mind with technology, science and geek culture news since 1995. Tagged: animals clips nanotechnology neurons republished science worms z Next Post: The Secret Film Of The CIA Supersonic Spy Plane’s First Flight » z « Previous Post: The Next 19 NBN Rollout Locations Are… z Comments (AU Comments | US Comments) z Zac F. July 8, 2010 at 9:16 PM Oh excellent. This is how it starts. Permalink Reply Post Your Comments Got something to say? There are two ways to comment: http://www.gizmodo.com.au/2010/07/magnetic-nanoparticles-can-remotely-control-worms/ 7/13/2010 Magnetic Nanoparticles Can Remotely Control Worms | Gizmodo Australia Page 4 of 4 1. Guests Click here to comment instantly. 2. Facebook Users Click below to comment using your Facebook account. We're looking for comments that are interesting, substantial or highly amusing. If your comments are excessively self-promotional, obnoxious, or even worse, boring, you will be banned from commenting. All comments are moderated. Editor's Picks z Friday August 13: Gizmodo’s Fight The Filter Day Of Action z Fight The Filter: Thoughts From The Pirate Party Australia z Meet The New Boss, Same As The Old Boss z YouTube Adds Support For High-Quality 4K Videos z Expecting Perfection From Apple Design Copyright © 2007-2010 Allure Media About Advertise Archives Contact Privacy / Terms of Use http://www.gizmodo.com.au/2010/07/magnetic-nanoparticles-can-remotely-control-worms/ 7/13/2010.